Digital Electronics MCQs Set-3

1. Which one of the following is the type of complement for each base R system?
  • Diminished radix-complement representation [(R – 1)’s complement]
  • Radix- complement representation [R’s complement]
  • 1’s and 2’s complement representation
  • Both A and B
2. For subtraction of binary number, subtract the _________________.
  • Minuend from the subtrahend digit
  • Subtrahend digit from the minuend
  • MSB from the LSB
  • None of the above
3. Which of the following condition is true for determining overflow condition in 2’s complement?
  • When adding two positive numbers gives a negative result or when two negatives give a positive result.
  • If sign bit (MSB) of result and sign bit of two operands are of different signs.
  • The ‘1’ in the MSB position indicates a negative number after adding two positive numbers.
  • All of the above
4. What does the leftmost bit represents, according to the IEEE standards?
  • Sign of the number
  • Position of the number
  • Weight of the number
  • None of the above
5. Floating-point numbers are those numbers, which include ______________
  • Decimals
  • Fractional parts
  • Integer values
  • All of the above
6. The binary representation of 0.875 is 0 01111110 11000000000000000000000 in _______________ presentation
  • 128- bit
  • Excess 127
  • 32- bit
  • 16-bit
7. 1000001 represents as (65)10 in which code?
  • ASCII code
  • Straight binary code
  • Gray code
  • BCD code
8. Binary Coded Decimal or BCD is also known as ______________
  • 2841
  • 4821
  • 4281
  • 8421
9. In straight binary code, N-bits or N binary digits can represent ______________ different values.
  • 2^N
  • 2^N+1
  • 2^N-1
  • 2^N-1
10. What is the decimal representation of decimal number 5?
  •  0000
  •  1001
  •  0011
  •  0101